【摘要】：水利工程因地形地質(zhì)條件多變,其異型體常難以設(shè)計(jì)。借助Auto-Revit的BIM三維建模技術(shù),對傳統(tǒng)挑流鼻坎的底板設(shè)置左右高差,對底板和邊墻三維聯(lián)動中的偏轉(zhuǎn)角θ_1、右挑高夾角θ_2、挑流鼻坎的挑角θ_3進(jìn)行優(yōu)化設(shè)計(jì),通過數(shù)值模擬進(jìn)行方案比選,最優(yōu)挑流鼻坎用三維函數(shù)表示。對某水庫溢洪道挑流鼻坎的模擬結(jié)果表明,θ_1=19.82°、θ_2=arctan(1/12)、θ_3=25°的右挑高0.5 m方案的挑流水舌可成功規(guī)避對右岸的沖刷,整體泄流模擬所得沿程水深、流速分布、動水壓強(qiáng)等水力參數(shù)符合實(shí)際情況,并且成功預(yù)測了不良流態(tài)位置。
[Abstract]:Because of the variety of topographic and geological conditions, water conservancy projects are often difficult to design. With the help of BIM 3D modeling technology of Auto-Revit, the left and right height difference is set on the bottom plate of the traditional slug, and the deflection angle 胃 _ 1, the height angle 胃 _ 2 of the right top and the angle 胃 _ 3 of the nose spring are optimized in the three dimensional linkage between the bottom plate and the sidewall. By numerical simulation, the optimal slug is represented by three-dimensional function. The simulation results of a spillway in a certain reservoir show that the sluicing tongue with 0. 5 m right uplift height of 胃 _ 1n 19.82 擄, 胃 _ 2=arctan (1 / 12), 胃 _ 3 ~ 25 擄can successfully avoid the scour on the right bank, and the whole discharge simulation results along the course of water depth. The hydraulic parameters such as velocity distribution, hydrodynamic pressure and so on accord with the actual situation, and the bad flow position is predicted successfully.
【作者單位】： 國家林業(yè)局昆明勘察設(shè)計(jì)院;云南農(nóng)業(yè)大學(xué)水利學(xué)院;綿陽市水利規(guī)劃設(shè)計(jì)研究院;
【基金】：水利部公益性行業(yè)科研專項(xiàng)(201301033)
【分類號】：TV135.23

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